unity-2d-panel crashed with SIGSEGV in QPainter::drawTiledPixmap()

[Serge Matveenko]

Unity-2d crashed after login via lightdm

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-panel 3.8.8-0ubuntu1
ProcVersionSignature: Ubuntu 3.0-2.3-generic 3.0.0-rc4
Uname: Linux 3.0-2-generic x86_64
Architecture: amd64
Date: Sat Jul 2 19:42:06 2011
ExecutablePath: /usr/bin/unity-2d-panel
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110531.1)
ProcCmdline: unity-2d-panel
ProcEnviron:
 PATH=(custom, no user)
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f2dd8668b11: mov %rax,(%rdi)
 PC (0x7f2dd8668b11) ok
 source "%rax" ok
 destination "(%rdi)" (0x7f2ddc47c000) in non-writable VMA region: 0x7f2ddc47c000-0x7f2ddc484000 r--p /usr/share/locale-langpack/ru/LC_MESSAGES/gdk-pixbuf.mo
SegvReason: writing VMA /usr/share/locale-langpack/ru/LC_MESSAGES/gdk-pixbuf.mo
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/libQtGui.so.4
 ?? () from /usr/lib/libQtGui.so.4
 ?? () from /usr/lib/libQtGui.so.4
 QPainter::drawTiledPixmap(QRectF const&, QPixmap const&, QPointF const&) () from /usr/lib/libQtGui.so.4
Title: unity-2d-panel crashed with SIGSEGV in QPainter::drawTiledPixmap()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:196
 blend_tiled_generic<(SpanMethod)0> (count=<value optimized out>, spans=0x7fff0c3e9830, userData=0x274fca0) at painting/qdrawhelper.cpp:5255
 fillRect_normalized (r=<value optimized out>, data=0x274fca0, pe=<value optimized out>) at painting/qpaintengine_raster.cpp:1511
 QRasterPaintEngine::drawTiledPixmap (this=<value optimized out>, r=..., pixmap=<value optimized out>, sr=...) at painting/qpaintengine_raster.cpp:2864
 QPainter::drawTiledPixmap (this=0x7fff0c3ea6e0, r=..., pixmap=..., sp=...) at painting/qpainter.cpp:6718

[Florian Boucault (fboucault)]

The latest reproduction of this bug was on September 9th with Unity 2D 4.4.0-0ubuntu1

[Alberto Mardegan (mardy)]

The bug still happens, and I seem to be able to reproduce it reliably when my xorg.conf is set like this (and I run Oneiric in VirtualBox):

==========
Section "Serverflags"
        Option "Pixmap" "24"
EndSection

Section "Screen"
        Identifier "Default Screen"
        Device "VirtualBox graphics card"
        Monitor "Generic Monitor"
        DefaultDepth 24
        DefaultFbBpp 24
        SubSection "Display"
                Depth 24
                FbBpp 24
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
EndSection
==========

I'll take this bug, then.

[Launchpad Janitor (janitor)]

This bug was fixed in the package qt4-x11 - 4:4.7.4-0ubuntu7

---------------
qt4-x11 (4:4.7.4-0ubuntu7) oneiric; urgency=low

  * debian/patches/kubuntu_96_fix_qml_crash.diff:
    - unity-2d-panel crashed with SIGSEGV in QPainter::drawTiledPixmap()
      (LP: #804784)
    - unity-2d-launcher crashed with SIGSEGV in QPainter::fillRect()
      (LP: #805587)
 -- Didier Roche <email address hidden> Thu, 29 Sep 2011 13:31:46 +0200